Aqueous bleaching formulations

The invention relates to new aqueous bleaching formulations containing1 to 10% by weight of peroxide compounds,1 to 2.5% by weight of fatty alcohol ether sulfates0.4 to 1.0% by weight of narrow-range fatty alcohol polyglycol ethers and1 to 2.5% by weight of electrolytes.The formulations are distinguished by advantageous viscosity, a cloud point of at least 20.degree. C. and high stability in storage.

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Claims

1. An aqueous bleaching composition having a viscosity of at least 100 mPa.s at about 20.degree. C. and a cloud point of at least 20.degree. C. consisting essentially of

1 to 10% by weight of a peroxide compound,
1 to 2.5% by weight of a fatty alcohol ether sulfate,
0.7 to 1.0% by weight of a narrow-range fatty alcohol polyglycol ether, and
1 to 2.5% by weight of an electrolyte, selected from the group consisting of sodium chloride and magnesium chloride, based on the weight of said composition.

2. A composition according to claim 1 wherein said narrow-range fatty alcohol polyglycol ether corresponds to formula (II)

3. A composition according to claim 1 wherein said peroxide compound comprises hydrogen peroxide.

4. A composition according to claim 1 wherein said fatty alcohol ether sulfate corresponds to formula (I)

Referenced Cited
U.S. Patent Documents
4656043 April 7, 1987 Hawkins et al.
5034159 July 23, 1991 Tesmann et al.
5271860 December 21, 1993 Schwadtke et al.
5500151 March 19, 1996 Cao et al.
Foreign Patent Documents
0376704 July 1990 EPX
0431747 June 1991 EPX
0484095 May 1992 EPX
3817415 November 1989 DEX
4117972 December 1992 DEX
4140181 June 1993 DEX
3091597 April 1991 JPX
WO9202607 February 1992 WOX
WO9509226 April 1995 WOX
Other references
  • J.Am.Oil.Chem.Soc. 67, pp. 599-604 (1990) (Sep.). Seifen-Oele-Fette-Wachse, 117, 592 (1991) Sep.
Patent History
Patent number: 5716924
Type: Grant
Filed: Feb 22, 1996
Date of Patent: Feb 10, 1998
Assignee: Henkel Kommanditgesellschaft auf Aktien (Duesseldorf)
Inventors: Angeles Balaguer (Caldes de Montbut), Jaume Josa (Terrassa), Mercedes Mendoza (Barcelona), Miguel Osset (Barcelona)
Primary Examiner: Margaret Einsmann
Attorneys: Ernest G. Szoke, Wayne C. Jaeschke, Real J. Grandmaison
Application Number: 8/569,120